Sensor input of storage tank middle sensor
Sensor input to which the sensor in the mid area of the
buffer tank is connected.
Sensor input of storage tank bottom sensor
Sensor input to which the sensor in the bottom part of the
buffer tank is connected.
Pump output of storage tank pump
Pump outlet to which the buffer loading pump is
connected.
Control of storage tank pump
Definition of control signal for pump type used.
⇨ See "PDM / 0 - 10V settings" [page 109]
Minimum buffer tank pump speed
Adjustment of the minimum speed to the pump type. (Set
the pump mode according to pump manufacturer’s
instructions)
Maximum buffer tank pump speed
If you need to limit the maximum speed of the store
loading pump for systemic reasons, you can do so by
adjusting this parameter.
Refill calculation active (sensors have to be assigned
correctly)
▪ YES: When opening the insulated door a
recommendation message regarding the amount of fuel
required to load up the layered tank appears on the
display.
Is a hygienic layered tank used?
▪ YES: If a hygienic layered tank (combi tank) is used, 1/3
of the storage volume is subtracted when calculating
the amount of fuel.
Volume of the used buffer tank
The storage tank volume set here is used for calculating
the required amount of fuel for loading the storage tank.
If the boiler is active then charge all buffer tanks
Prerequisite: Variant 3 or variant 4
▪ YES: Starting the boiler due to a heating requirement by
the storage tank in the boiler system not only loads this
storage tank, but all of the storage tanks in sub-stations.
This increases the runtime related to a boiler system
start.
Pump outlet for buffer tank relief valve
The isolating valve switches off part of the layered tank
until an adjustable temperature has been reached so that
the boiler reaches the temperature more quickly. Once this
temperature has been reached, the isolating valve
switches back and the entire volume of the layered tank is
available to the boiler.
Invert pump outlet for buffer relief valve
▪ YES: If the valve switches incorrectly, the way it is
controlled can be changed using this parameter.
Pump outlet for buffer tank zone valve
If the pellet unit is active, an isolating valve can be used to
make just part of the layered tank available. The pump
outlet remains active until the boiler controller switches to
an operating status in firewood mode.
Invert pump outlet for buffer zone valve
▪ YES: If the valve switches incorrectly, the way it is
controlled can be changed using this parameter.
Parameters overview
4
Buffer tank
Service manual Lambdatronic SP 3200 for dual fuel boiler | B1460720_en
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